Safety door lock

Details Safety door lock Safety door lock

1981-10-20

1984-10-09

Moore, Richard E.

Closure fasteners

Extension link

Slotted bar

E05C 1716

Patent

active

044757530

ABSTRACT:
A latch member is mounted on the free swinging edge of a door and a mount is supported from a door frame toward which the door free swinging edge is moved to the closed position. The mount is supported for oscillation about an axis paralleling the door frame portion and an elongated hasp has one end pivotally supported from the mount for oscillation about an axis normal to the axis of oscillation of the mount and the other end of the hasp includes structure for latchingly engaging the latch member. In addition, the latch member is supported from a door edge mounted support and the longitudinal mid portion of the hasp and the mount include co-acting structure operable to interlockingly engage with each other and lock the door in the closed position. The hasp, when the end thereof remote from the mount is engaged with the latch member, is operative to allow slight movement of the associated door toward the open position and to prevent the door from being further opened.

REFERENCES:
patent: 1287978 (1918-12-01), Harlev, Jr.
patent: 1596183 (1926-08-01), Horlick, Jr.

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